Remove net-internals page for throttling, introduce flag for extension devs instead.

chrome/browser/ui/webui/net_internals/net_internals_ui.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/net_internals/net_internals_ui.h"
 
 #include <algorithm>
 #include <list>
 #include <string>
 #include <utility>
@@ skipping 228 matching lines @@
 // Note that the WebUI infrastructure runs on the UI thread, therefore all of
 // this class's methods are expected to run on the UI thread.
 //
 // Since the network code we want to run lives on the IO thread, we proxy
 // almost everything over to NetInternalsMessageHandler::IOThreadImpl, which
 // runs on the IO thread.
 //
 // TODO(eroman): Can we start on the IO thread to begin with?
 class NetInternalsMessageHandler
     : public WebUIMessageHandler,
-      public base::SupportsWeakPtr<NetInternalsMessageHandler>,
-      public content::NotificationObserver {
+      public base::SupportsWeakPtr<NetInternalsMessageHandler> {
  public:
   NetInternalsMessageHandler();
   virtual ~NetInternalsMessageHandler();
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
 
   // Calls g_browser.receive in the renderer, passing in |command| and |arg|.
   // Takes ownership of |arg|.  If the renderer is displaying a log file, the
   // message will be ignored.
   void SendJavascriptCommand(const std::string& command, Value* arg);
 
-  // content::NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
   // Javascript message handlers.
   void OnRendererReady(const ListValue* list);
-  void OnEnableHttpThrottling(const ListValue* list);
   void OnClearBrowserCache(const ListValue* list);
   void OnGetPrerenderInfo(const ListValue* list);
 #ifdef OS_CHROMEOS
   void OnRefreshSystemLogs(const ListValue* list);
   void OnGetSystemLog(const ListValue* list);
   void OnImportONCFile(const ListValue* list);
   void OnStoreDebugLogs(const ListValue* list);
   void OnStoreDebugLogsCompleted(const FilePath& log_path, bool succeeded);
   void OnSetNetworkDebugMode(const ListValue* list);
   void OnSetNetworkDebugModeCompleted(const std::string& subsystem,
@@ skipping 51 matching lines @@
     std::list<SystemLogRequest> requests_;
     scoped_ptr<chromeos::system::LogDictionaryType> logs_;
     bool logs_received_;
     bool logs_requested_;
     CancelableRequestConsumer consumer_;
     // Libcros request handle.
     CancelableRequestProvider::Handle syslogs_request_id_;
   };
 #endif
 
-  // The pref member about whether HTTP throttling is enabled, which needs to
-  // be accessed on the UI thread.
-  BooleanPrefMember http_throttling_enabled_;
-
   // This is the "real" message handler, which lives on the IO thread.
   scoped_refptr<IOThreadImpl> proxy_;
 
   base::WeakPtr<prerender::PrerenderManager> prerender_manager_;
 
 #ifdef OS_CHROMEOS
   // Class that handles getting and filtering system logs.
   scoped_ptr<SystemLogsGetter> syslogs_getter_;
 #endif
 
@@ skipping 150 matching lines @@
     // Notify the handler on the IO thread that the renderer is gone.
     BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                             base::Bind(&IOThreadImpl::Detach, proxy_.get()));
   }
 }
 
 void NetInternalsMessageHandler::RegisterMessages() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   Profile* profile = Profile::FromWebUI(web_ui());
-  PrefService* pref_service = profile->GetPrefs();
-  http_throttling_enabled_.Init(
-      prefs::kHttpThrottlingEnabled, pref_service, this);
 
   proxy_ = new IOThreadImpl(this->AsWeakPtr(), g_browser_process->io_thread(),
                             profile->GetRequestContext());
 #ifdef OS_CHROMEOS
   syslogs_getter_.reset(new SystemLogsGetter(this,
       chromeos::system::SyslogsProvider::GetInstance()));
 #endif
 
   prerender::PrerenderManager* prerender_manager =
       prerender::PrerenderManagerFactory::GetForProfile(profile);
@@ skipping 88 matching lines @@
 
   web_ui()->RegisterMessageCallback(
       "getHttpPipeliningStatus",
       base::Bind(&IOThreadImpl::CallbackHelper,
                  &IOThreadImpl::OnGetHttpPipeliningStatus, proxy_));
   web_ui()->RegisterMessageCallback(
       "setLogLevel",
       base::Bind(&IOThreadImpl::CallbackHelper,
                  &IOThreadImpl::OnSetLogLevel, proxy_));
   web_ui()->RegisterMessageCallback(
-      "enableHttpThrottling",
-      base::Bind(&NetInternalsMessageHandler::OnEnableHttpThrottling,
-                 base::Unretained(this)));
-  web_ui()->RegisterMessageCallback(
       "clearBrowserCache",
       base::Bind(&NetInternalsMessageHandler::OnClearBrowserCache,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "getPrerenderInfo",
       base::Bind(&NetInternalsMessageHandler::OnGetPrerenderInfo,
                  base::Unretained(this)));
 #ifdef OS_CHROMEOS
   web_ui()->RegisterMessageCallback(
       "refreshSystemLogs",
@@ skipping 27 matching lines @@
   if (value.get()) {
     web_ui()->CallJavascriptFunction("g_browser.receive",
                                      *command_value.get(),
                                      *value.get());
   } else {
     web_ui()->CallJavascriptFunction("g_browser.receive",
                                      *command_value.get());
   }
 }
 
-void NetInternalsMessageHandler::Observe(
-    int type,
-    const content::NotificationSource& source,
-    const content::NotificationDetails& details) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK_EQ(type, chrome::NOTIFICATION_PREF_CHANGED);
-
-  std::string* pref_name = content::Details<std::string>(details).ptr();
-  if (*pref_name == prefs::kHttpThrottlingEnabled) {
-    SendJavascriptCommand(
-        "receivedHttpThrottlingEnabledPrefChanged",
-        Value::CreateBooleanValue(*http_throttling_enabled_));
-  }
-}
-
 void NetInternalsMessageHandler::OnRendererReady(const ListValue* list) {
   IOThreadImpl::CallbackHelper(&IOThreadImpl::OnRendererReady, proxy_, list);
-
-  SendJavascriptCommand(
-      "receivedHttpThrottlingEnabledPrefChanged",
-      Value::CreateBooleanValue(*http_throttling_enabled_));
-}
-
-void NetInternalsMessageHandler::OnEnableHttpThrottling(const ListValue* list) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-
-  bool enable = false;
-  if (!list->GetBoolean(0, &enable)) {
-    NOTREACHED();
-    return;
-  }
-
-  http_throttling_enabled_.SetValue(enable);
 }
 
 void NetInternalsMessageHandler::OnClearBrowserCache(const ListValue* list) {
   BrowsingDataRemover* remover =
       new BrowsingDataRemover(Profile::FromWebUI(web_ui()),
                               BrowsingDataRemover::EVERYTHING,
                               base::Time());
   remover->Remove(BrowsingDataRemover::REMOVE_CACHE);
   // BrowsingDataRemover deletes itself.
 }
@@ skipping 1002 matching lines @@
 
 NetInternalsUI::NetInternalsUI(content::WebUI* web_ui)
     : WebUIController(web_ui) {
   web_ui->AddMessageHandler(new NetInternalsMessageHandler());
 
   // Set up the chrome://net-internals/ source.
   Profile* profile = Profile::FromWebUI(web_ui);
   profile->GetChromeURLDataManager()->AddDataSource(
       CreateNetInternalsHTMLSource());
 }